Doping organic hole-transport materials for high-performance perovskite solar cells  

作　　者：Dongmei He Shirong Lu Juan Hou Cong Chen Jiangzhao Chen Liming Ding 

机构地区：[1]Key Laboratory of Optoelectronic Technology&Systems(MoE),College of Optoelectronic Engineering,Chongqing University,Chongqing 400044,China [2]Department of Material Science and Technology,Taizhou University,Taizhou 318000,China [3]Department of Physics,Shihezi University,Shihezi 832003,China [4]State Key Laboratory of Reliability and Intelligence of Electrical Equipment,School of Materials Science and Engineering,Hebei University of Technology,Tianjin 300401,China [5]Center for Excellence in Nanoscience(CAS),Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS),National Center for Nanoscience and Technology,Beijing 100190,China

出　　处：《Journal of Semiconductors》2023年第2期4-8,共5页半导体学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(62274018);the Fundamental Research Funds for the Central Universities(2020CDJ-LHZZ-074);the Natural Science Foundation of Chongqing(cstc2020jcyj-msxmX0629);the Support Plan for Overseas Students to Return to China for Entrepreneurship and Innovation(cx2020003);L.Ding thanks the National Key Research and Development Program of China(2022YFB3803300);the open research fund of Songshan Lake Materials Laboratory(2021SLABFK02);the National Natural Science Foundation of China(21961160720).

摘　　要：Single-junction and tandem perovskite solar cells(PSCs)have achieved impressive power conversion efficiencies(PCEs)of 25.7%and 31.3%,respectively,which makes it to be one of next-generation photovoltaic technologies[1−9].Inter-face engineering[3,5,10−12],composition engineering[13]and ad-ditive engineering[7,14,15]have made remarkable contribu-tions to efficiency enhancement.Compared with efficiency,the long-term operational stability of PSCs jogs along,which is far from the requirements of commercialization.Currently,almost all regular n-i-p PSCs were accomplished with classic-al organic hole-transport materials(HTMs),i.e.,PTAA[16]and spiro-OMeTAD[2,4,6].However,the highly efficient PSCs with the above organic hole-transport layers(HTL)usually suffer from instability.To facilitate hole transport and extraction,LiTF-SI and tBP are frequently employed to dope organic HTLs but this would sacrifice device stability.The use of these hygro-scopic p-dopants endows the devices with poor moisture sta-bility.

关 键 词：STABILITY PEROVSKITE accomplished 

分 类 号：TB34[一般工业技术—材料科学与工程] TM914.4[电气工程—电力电子与电力传动]